Advanced InP- and GaSb-based light sources for the near to far infrared

Date: 2016/9/16 Browse: 394

Advanced InP- and GaSb-based light sources for the near
to far infrared

Speaker: Prof. Dr.-Ing. Markus-Christian Amann

Vice Dean

Technical
University of Munich

Chair of Semiconductor
Technology

Time: Sept. 16, 10:00am – 11:00am

Venue: Room 202, Building of School of Entrepreneuership and Management

Abstract:

The most important applications of laser diodes in the
near- to far-infrared are in the fields of communications, sensing and
spectroscopy. According to the importance of these applications, huge efforts
have been spent on material and device concepts as well as on technology to
accomplish application-suited devices. In this talk we shall present novel
light sources on InP that exploit the so-called type-II heterostructures in order
to extend the upper wavelength limitations of the InP band-to-band injection
lasers and LED significantly from about 2.3μm to 3.2μm (LEDs) and 2.7μm
(lasers), respectively. Longer wavelengths extending into the mid-IR can be
achieved by GaSb-based lasers, where the type-I heterostructure devices achieve
up to 3.7μm at room temperature. Finally nonlinear quantum cascade lasers
comprising a transversely integrated dual wavelength laser with inherent giant
inter-subband nonlinearity are presented that operate at room temperature and
can be tuned from ~2 to 5 Thz (λ~60-150μm).

Bio:

Markus-Christian Amann received the Diplom degree in
electrical engineering in 1976 and the Dr.-Ing. degree in 1981, both from the
Technical University of Munich. From 1981 to 1994 he was a deputy director with
the Corporate Research Laboratories of the Siemens AG in Munich. In 1994 he
joined the Department of Electrical Engineering at the University of Kassel as
a full professor for “Technical Electronics”. Since 1997 he is a director of
the Walter Schottky Institute of the Technical University of Munich and holds
the Chair of Semiconductor Technology, where he is currently engaged in the
research on tunable laser diodes for the near infrared, quantum cascade lasers,
long-wavelength vertical-cavity laserdiodes and laser diode applications. He
authored or co-authored more than 500 articles (including some 50 invited) on
semiconductor optoelectronics in scientific journals and conference
proceedings, and co-authored several books. He is a member of the German
Informationstechnische Gesellschaft (ITG), and a Fellow of the IEEE Photonics
Society.